###BeginCaseStudy###
Case Study: 2
Scenario 2
Background
You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed.
The user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the external order
database.
• OrderProcessor: An ASP.NET MVC project used for order processing and logging
order metadata.
• OrderUpload: A WCF service project used to submit order data to an external data
source.
• Shipping: A WCF service project used to acquire shipping information.

ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
OrderProcessor Project:
Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace. The project contains
the following two controllers.
• InboundQueueController.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements.
The GetVendorPolicy() method must enforce a 10 minute absolute cache expiration policy.
The GetProcessedOrders() method must return a view of the 10 most recently processed
orders.
OrderUpload Project:
The project contains two services defined in the following files.
• IUploadCallbackService.es
• UploadCallbackService.svc

Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed. POCO classes for
the Entity Model are located in the ShippingAddress.es file. The POCO entity must be
loaded by using lazy loading. The project contains two services defined in the following files.
• IShippingService.es
• ShippingService.svc.
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure







###EndCaseStudy###

The GetExternalOrder() method in the ExternalQueueService service is throwing a runtime
error. The method must query the database for a record that matches the orderNum
parameter passed to the method. You need to modify the queryString string to retrieve the
record. With which code segment should you replace line EQ64?

DRAG DROP

###BeginCaseStudy###
Case Study: 2
Scenario 2
Background
You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed.
The user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the external order
database.
• OrderProcessor: An ASP.NET MVC project used for order processing and logging
order metadata.
• OrderUpload: A WCF service project used to submit order data to an external data
source.
• Shipping: A WCF service project used to acquire shipping information.

ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
OrderProcessor Project:
Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace. The project contains
the following two controllers.
• InboundQueueController.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements.
The GetVendorPolicy() method must enforce a 10 minute absolute cache expiration policy.
The GetProcessedOrders() method must return a view of the 10 most recently processed
orders.
OrderUpload Project:
The project contains two services defined in the following files.
• IUploadCallbackService.es
• UploadCallbackService.svc

Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed. POCO classes for
the Entity Model are located in the ShippingAddress.es file. The POCO entity must be
loaded by using lazy loading. The project contains two services defined in the following files.
• IShippingService.es
• ShippingService.svc.
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure







###EndCaseStudy###

The GetExternalOrders() method must use members of the EntityClient namespace to query
the database for all records in the InboundQueue entity. You need to modify the
GetExternalOrders() method to return the correct data. What should you do? (To answer,
drag the appropriate code segments to the correct location or locations in the answer area.
Each code segment may be used once, more than once, or not at all. You may need to drag
the split bar between panes or scroll to view content.)

###BeginCaseStudy###
Case Study: 2
Scenario 2
Background
You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed.
The user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the external order
database.
• OrderProcessor: An ASP.NET MVC project used for order processing and logging
order metadata.
• OrderUpload: A WCF service project used to submit order data to an external data
source.
• Shipping: A WCF service project used to acquire shipping information.

ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
OrderProcessor Project:
Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace. The project contains
the following two controllers.
• InboundQueueController.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements.
The GetVendorPolicy() method must enforce a 10 minute absolute cache expiration policy.
The GetProcessedOrders() method must return a view of the 10 most recently processed
orders.
OrderUpload Project:
The project contains two services defined in the following files.
• IUploadCallbackService.es
• UploadCallbackService.svc

Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed. POCO classes for
the Entity Model are located in the ShippingAddress.es file. The POCO entity must be
loaded by using lazy loading. The project contains two services defined in the following files.
• IShippingService.es
• ShippingService.svc.
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure







###EndCaseStudy###

You need to regenerate the service proxies to include task-based asynchronous method
signatures. Which command should you use?

###BeginCaseStudy###
Case Study: 2
Scenario 2
Background
You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed.
The user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the external order
database.
• OrderProcessor: An ASP.NET MVC project used for order processing and logging
order metadata.
• OrderUpload: A WCF service project used to submit order data to an external data
source.
• Shipping: A WCF service project used to acquire shipping information.

ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
OrderProcessor Project:
Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace. The project contains
the following two controllers.
• InboundQueueController.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements.
The GetVendorPolicy() method must enforce a 10 minute absolute cache expiration policy.
The GetProcessedOrders() method must return a view of the 10 most recently processed
orders.
OrderUpload Project:
The project contains two services defined in the following files.
• IUploadCallbackService.es
• UploadCallbackService.svc

Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed. POCO classes for
the Entity Model are located in the ShippingAddress.es file. The POCO entity must be
loaded by using lazy loading. The project contains two services defined in the following files.
• IShippingService.es
• ShippingService.svc.
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure







###EndCaseStudy###

The DeleteExternalOrder() method in the ExternalQueueService service is not throwing a
FaultException exception as defined by the FaultContractAttribute attribute in the
IExternatQueueService.cs file. You need to throw the FaultException exception. Which code
segment can you insert at line EQ45 to achieve this goal? (Each correct answer presents a
complete solution. Chose all that apply.)

###BeginCaseStudy###
Case Study: 2
Scenario 2
Background
You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed.
The user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the external order
database.
• OrderProcessor: An ASP.NET MVC project used for order processing and logging
order metadata.
• OrderUpload: A WCF service project used to submit order data to an external data
source.
• Shipping: A WCF service project used to acquire shipping information.

ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
OrderProcessor Project:
Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace. The project contains
the following two controllers.
• InboundQueueController.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements.
The GetVendorPolicy() method must enforce a 10 minute absolute cache expiration policy.
The GetProcessedOrders() method must return a view of the 10 most recently processed
orders.
OrderUpload Project:
The project contains two services defined in the following files.
• IUploadCallbackService.es
• UploadCallbackService.svc

Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed. POCO classes for
the Entity Model are located in the ShippingAddress.es file. The POCO entity must be
loaded by using lazy loading. The project contains two services defined in the following files.
• IShippingService.es
• ShippingService.svc.
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure







###EndCaseStudy###

The GetVendors() action in the ProcessedOrderController controller is querying the
database each time it is run. The GetVendors() action must query the database only if the
cache is null.
You need to add code to the action at line PC33 to cache the data. Which code segment can
you use? (Each correct answer presents a complete solution. Choose all that apply.)

DRAG DROP

###BeginCaseStudy###
Case Study: 2
Scenario 2
Background
You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed.
The user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the external order
database.
• OrderProcessor: An ASP.NET MVC project used for order processing and logging
order metadata.
• OrderUpload: A WCF service project used to submit order data to an external data
source.
• Shipping: A WCF service project used to acquire shipping information.

ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
OrderProcessor Project:
Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace. The project contains
the following two controllers.
• InboundQueueController.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements.
The GetVendorPolicy() method must enforce a 10 minute absolute cache expiration policy.
The GetProcessedOrders() method must return a view of the 10 most recently processed
orders.
OrderUpload Project:
The project contains two services defined in the following files.
• IUploadCallbackService.es
• UploadCallbackService.svc

Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed. POCO classes for
the Entity Model are located in the ShippingAddress.es file. The POCO entity must be
loaded by using lazy loading. The project contains two services defined in the following files.
• IShippingService.es
• ShippingService.svc.
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure







###EndCaseStudy###

You need to modify the ExecuteCommandProcedure() method to meet the technical
requirements. Which code segment should you use?

###BeginCaseStudy###
Case Study: 2
Scenario 2
Background
You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed.
The user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the external order
database.
• OrderProcessor: An ASP.NET MVC project used for order processing and logging
order metadata.
• OrderUpload: A WCF service project used to submit order data to an external data
source.
• Shipping: A WCF service project used to acquire shipping information.

ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
OrderProcessor Project:
Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace. The project contains
the following two controllers.
• InboundQueueController.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements.
The GetVendorPolicy() method must enforce a 10 minute absolute cache expiration policy.
The GetProcessedOrders() method must return a view of the 10 most recently processed
orders.
OrderUpload Project:
The project contains two services defined in the following files.
• IUploadCallbackService.es
• UploadCallbackService.svc

Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed. POCO classes for
the Entity Model are located in the ShippingAddress.es file. The POCO entity must be
loaded by using lazy loading. The project contains two services defined in the following files.
• IShippingService.es
• ShippingService.svc.
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure







###EndCaseStudy###

The QueueDetail entity type must inherit from the InboundQueue entity type in the
ExternalQueue service project using table-per-type inheritance. You need to modify the
entities in the designer. What should you do? (Each correct answer presents part of the
solution. Choose all that apply.)

DRAG DROP

###BeginCaseStudy###
Case Study: 2
Scenario 2
Background
You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed.
The user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the external order
database.
• OrderProcessor: An ASP.NET MVC project used for order processing and logging
order metadata.
• OrderUpload: A WCF service project used to submit order data to an external data
source.
• Shipping: A WCF service project used to acquire shipping information.

ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
OrderProcessor Project:
Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace. The project contains
the following two controllers.
• InboundQueueController.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements.
The GetVendorPolicy() method must enforce a 10 minute absolute cache expiration policy.
The GetProcessedOrders() method must return a view of the 10 most recently processed
orders.
OrderUpload Project:
The project contains two services defined in the following files.
• IUploadCallbackService.es
• UploadCallbackService.svc

Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed. POCO classes for
the Entity Model are located in the ShippingAddress.es file. The POCO entity must be
loaded by using lazy loading. The project contains two services defined in the following files.
• IShippingService.es
• ShippingService.svc.
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure







###EndCaseStudy###

The UploadOrder() method in the UploadCallbackService service is not implementing the
callback behavior defined in the IUploadCallBackService interface. You need to modify the
class to implement the required callback behavior. What should you do? (To answer, drag
the appropriate code segments to the correct location or locations in the answer area. Each
code segments may be used once, more than once, or not at all. You may need to drag the
split bar between panes or scroll to view content.)